Building a Scalable WebSocket Push Service in Go: From Basics to Million‑User Architecture
This article explains WebSocket fundamentals, compares pull and push models, details the WebSocket handshake flow, presents a complete Go server and client implementation, analyzes performance bottlenecks of a million‑user bullet‑screen system, and proposes concrete optimizations such as packet merging, lock granularity, JSON encoding reduction, and HTTP/2‑based clustering.
